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Earnings Per Share (Tables)
6 Months Ended
Jul. 01, 2017
Earnings Per Share [Abstract]  
Reconciliation of basic and diluted shares used to calculate earnings per share
Three Months EndedSix Months Ended
July 1,June 25,July 1,June 25,
2017201620172016
Basic 78,87481,45878,83981,516
Effect of dilutive securities:
Stock options, restricted stock and restricted stock units 6649367911,049
Diluted 79,53882,39479,63082,565